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Home >> Porsche >> 1994 >> 911 Speedster F6-3600cc 3.6L SOHC >> Repair and Diagnosis >> Powertrain Management >> Transmission Control Systems >> Description and Operation >> Abbreviations and Definitions
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Abbreviations and Definitions

ABBREVIATIONS:
TE = Transmission electronics= - System components
ECU = Electronic transmission control unit
HCU = Hydraulic transmission control unit

SYSTEM VOLTAGE
The system voltage reflects the current charging state of the battery. When the battery is discharged, the voltage is approx. 11 V; when the engine is running it is approx. 14.5 V




NEEDLE PULSE
Needle pulses are pulses of extremely short duration that appear as a vertical line on the oscilloscope (tr signal)

UNIT FUNCTIONS
Installed units must operate correctly within a voltage range of 9.5 to 16.8 Volts.
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